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Draft EN 300 019-2-3 V2.1.1 (1999-04)European Standard (Telecommunications series)

Equipment Engineering (EE);Environmental conditions and environmental tests for

telecommunications equipment;Part 2-3: Specification of environmental tests;Stationary use at weatherprotected locations

ETSI

Draft EN 300 019-2-3 V2.1.1 (1999-04)2

ReferenceREN/EE-01027-2-3 (06cis0co.PDF)

KeywordsEnvironment

ETSI

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ETSI

Draft EN 300 019-2-3 V2.1.1 (1999-04)3

Contents

Intellectual Property Rights................................................................................................................................5

Foreword ............................................................................................................................................................5

1 Scope........................................................................................................................................................6

2 References................................................................................................................................................6

3 Environmental test specifications ............................................................................................................63.1 Specifications T 3.1 and T 3.1 E: Temperature-controlled locations .................................................................73.2 Specification T 3.2: Partly temperature-controlled locations ...........................................................................113.3 Specification T 3.3: Not temperature-controlled locations...............................................................................143.4 Specification T 3.4: Sites with heat-trap...........................................................................................................173.5 Specification T 3.5: Sheltered locations...........................................................................................................20

4 Earthquake test specification .................................................................................................................234.1 Vibration response investigation ......................................................................................................................234.2 Test conditioning..............................................................................................................................................24

5 Notes to tables........................................................................................................................................255.1 General note .....................................................................................................................................................255.2 Notes to Tables 1 to 12.....................................................................................................................................25

Annex A (normative): Alternative climatic test method for class 3.1 .............................................29

A.1 Description .............................................................................................................................................29

A.2 Objectives...............................................................................................................................................29

A.3 Test apparatus ........................................................................................................................................29

A.4 Methodology ..........................................................................................................................................29

A.5 Pre-conditioning.....................................................................................................................................29

A.6 Testing....................................................................................................................................................30A.6.1 Equipment operation ........................................................................................................................................30A.6.2 Equipment failures............................................................................................................................................30A.6.3 Test severities..................................................................................................................................................30A.6.4 Scanning the climatogram ...............................................................................................................................31A.6.5 Rates of change ...............................................................................................................................................31A.6.6 Functional requirements and verification ........................................................................................................31

Annex B (normative): Alternative climatic test method for class 3.2 .............................................32

B.1 Description ............................................................................................................................................32

B.2 Objectives..............................................................................................................................................32

B.3 Test apparatus .......................................................................................................................................32

B.4 Methodology .........................................................................................................................................32

B.5 Pre-conditioning....................................................................................................................................33

B.6 Testing...................................................................................................................................................33B.6.1 Equipment operation .......................................................................................................................................33B.6.2 Equipment failures...........................................................................................................................................33B.6.3 Test severities..................................................................................................................................................33B.6.4 Scanning the climatogram ...............................................................................................................................33B.6.5 Rates of change ...............................................................................................................................................34B.6.6 Functional requirements and verification ........................................................................................................34

ETSI

Draft EN 300 019-2-3 V2.1.1 (1999-04)4

Annex C (normative): Alternative climatic test method for class 3.3 .............................................35

C.1 Description ............................................................................................................................................35

C.2 Objectives..............................................................................................................................................35

C.3 Test apparatus .......................................................................................................................................35

C.4 Methodology .........................................................................................................................................35

C.5 Pre-conditioning....................................................................................................................................36

C.6 Testing...................................................................................................................................................36C.6.1 Equipment operation .......................................................................................................................................36C.6.2 Equipment failures...........................................................................................................................................36C.6.3 Test severities..................................................................................................................................................36C.6.4 Scanning the climatogram ...............................................................................................................................36C.6.5 Rates of change ...............................................................................................................................................37C.6.6 Functional requirements and verification ........................................................................................................37

Annex D (normative): Alternative climatic test method for class 3.4 .............................................38

D.1 Description ............................................................................................................................................38

D.2 Objectives..............................................................................................................................................38

D.3 Test apparatus .......................................................................................................................................38

D.4 Methodology .........................................................................................................................................38

D.5 Pre-conditioning....................................................................................................................................39

D.6 Testing...................................................................................................................................................39D.6.1 Equipment operation .......................................................................................................................................39D.6.2 Equipment failures...........................................................................................................................................39D.6.3 Test severities..................................................................................................................................................39D.6.4 Scanning the climatogram ...............................................................................................................................40D.6.5 Rates of change ...............................................................................................................................................40D.6.6 Functional requirements and verification ........................................................................................................40

Annex E (normative): Alternative climatic test method for class 3.5 .............................................41

E.1 Description ............................................................................................................................................41

E.2 Objectives..............................................................................................................................................41

E.3 Test apparatus .......................................................................................................................................41

E.4 Methodology .........................................................................................................................................41

E.5 Pre-conditioning....................................................................................................................................42

E.6 Testing...................................................................................................................................................42E.6.1 Equipment operation .......................................................................................................................................42E.6.2 Equipment failures...........................................................................................................................................42E.6.3 Test severities..................................................................................................................................................42E.6.4 Scanning the climatogram ...............................................................................................................................43E.6.5 Rates of change ...............................................................................................................................................43E.6.6 Functional requirements and verification ........................................................................................................43

Bibliography.....................................................................................................................................................44

History ..............................................................................................................................................................45

ETSI

Draft EN 300 019-2-3 V2.1.1 (1999-04)5

Intellectual Property RightsIPRs essential or potentially essential to the present document may have been declared to ETSI. The informationpertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be foundin SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respectof ETSI standards", which is available free of charge from the ETSI Secretariat. Latest updates are available on theETSI Web server (http://www.etsi.org/ipr).

Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guaranteecan be given as to the existence of other IPRs not referenced in SR 000 314 (or the updates on the ETSI Web server)which are, or may be, or may become, essential to the present document.

ForewordThis European Standard (Telecommunications series) has been produced by ETSI Technical Committee EquipmentEngineering (EE), and is now submitted for the ETSI standards One-step Approval Procedure.

The present document consists of 2 parts as follows:

Part 1: "Classification of environmental conditions";

NOTE 1: Specifies different standardized environmental classes covering climatic and biological conditions,chemically and mechanically active substances and mechanical conditions during storage, transportationand in use.

Part 2: "Specification of environmental tests".

NOTE 2: Specifies the recommended test severities and test methods for the different environmental classes.

Each part of the standard is divided into sub-parts. Sub-part 2-0 forms a general overview of Part 2.

This sub-part 2-3 deals with stationary use at weatherprotected locations.

Proposed national transposition dates

Date of latest announcement of this EN (doa): 3 months after ETSI publication

Date of latest publication of new National Standardor endorsement of this EN (dop/e): 6 months after doa

Date of withdrawal of any conflicting National Standard (dow): 6 months after doa

ETSI

Draft EN 300 019-2-3 V2.1.1 (1999-04)6

1 ScopeThe present document specifies test severities and methods for the verification of the required resistibility of equipmentaccording to the relevant environmental class.

The tests in Part 2-3 of this multi-part EN apply to stationary use of equipment at weatherprotected locations coveringthe environmental conditions stated in ETS 300 019-1-3 [1].

2 ReferencesThe following documents contain provisions which, through reference in this text, constitute provisions of the presentdocument.

• References are either specific (identified by date of publication, edition number, version number, etc.) ornon-specific.

• For a specific reference, subsequent revisions do not apply.

• For a non-specific reference, the latest version applies.

• A non-specific reference to an ETS shall also be taken to refer to later versions published as an EN with the samenumber.

[1] ETS 300 019-1-3: "Equipment Engineering (EE); Environmental conditions and environmentaltests for telecommunications equipment; Part 1-3: Classification of environmental conditions;Stationary use at weatherprotected locations".

[2] IEC 60068-2: "Environmental testing - Part 2: Tests".

[3] ETS 300 019-2-0: "Equipment Engineering (EE); Environmental conditions and environmentaltests for telecommunications equipment; Part 2-0: Specification of environmental tests;Introduction".

[4] IEC 60721-3-3: "Classification of environmental conditions - Part 3: Classification of groups ofenvironmental parameters and their severities - Section 3: Stationary use at weatherprotectedlocations".

3 Environmental test specificationsThe detailed descriptions of the environmental conditions are in Clauses 4 and 5 of ETS 300 019-1-3 [1].

ETS 300 019-2-0 [3] forms a general overview of Part 2 of the present document.

The equipment under test is assumed to be in its operational state throughout the test conditions described in this partunless otherwise stated. The required performance before, during and after the test needs to be specified in the productspecification. Input and load conditions of the equipment shall be chosen to obtain full utilization of the equipmentunder test. The heat dissipation shall be maximized, except for the steady state, low temperature test, where it shall beminimized.

ETSI

Draft EN 300 019-2-3 V2.1.1 (1999-04)7

3.1 Specifications T 3.1 and T 3.1 E: Temperature-controlled locationsSpecification T 3.1: Temperature-controlled locations - normal operating conditions.

This specification applies to permanently temperature-controlled enclosed locations where humidity is usually not controlled. See tables 1 and 2.

Table 1: Test specification T 3.1: Temperature -controlled locations - climatic tests

Environmental parameter EnvironmentalClass 3.1

Environmental test specification T3.1: In -use,Temperature -controlled locations

Type Parameter Detail parameter Characteristicseverity

Test severity Duration Reference Method Notes

low (°C) +5 +5 16 h IEC 60068-2-1 Ab/Ad: Cold 1, 21Airtemperature

high (°C) +40 +40 or +50 16 h IEC 60068-2-2 Bb/Bd: Dry heat 2, 21

change (°C)(°C/min) 0,5

+25/+400,5

half cyclet1 = 3 h

IEC 60068-2-14 Nb: Change oftemperature

3, 21

low(%) 5 none 4, 21relative high (%)

(°C)85 85

+304 d IEC 60068-2-56 Cb: Damp heat steady

state5, 21

Humidity condensation noabsolute low(g/m3) 1 none 4, 21

high (g/m3) 25 7, 21pressure low(kPa) 70 none 8

Air high (kPa) 106 none 8speed (m/s) 5,0 none 4rain intensity no

Water low temperature noother sources noicing & frosting no

Radiation solar (W/m2) 700 10heat (W/m2) 600 11

ETSI

Draft EN 300 019-2-3 V2.1.1 (1999-04)8


Environmental test specification T3.1: In-use,Temperature-controlled locations



sulphur SO2 (mg/m3) 0,3/1,0 none 12H2S (mg/m3) 0,1/0,5 none 12salt mist sea and road salt none 12

Chemically chlorine Cl2 (mg/m3) 0,1/0,3 none 12active HCI (mg/m3) 0,1/0,5 none 12substances nitrogen NOx (mg/m3) 0,5/1,0 none 12

NH3 (mg/m3) 1,0/3,0 none 12hydrogen fluorideHF

(mg/m3) 0,01/0,03 none 12

ozone O3 (mg/m3) 0,05/0,1 none 12Mechanically dust sedimentation

(mg/(m2h))1,5 none 12

active suspension (mg/m3) 0,2 none 13substances sand (mg/m3) 30 none 13Flora and micro organisms negligiblefauna rodents, insects negligibleNOTE 1: no = this condition does not occur in this class.NOTE 2: none = verification is required only in special cases.NOTE 3: n = number of note, see clause 5.

ETSI

Draft EN 300 019-2-3 V2.1.1 (1999-04)9

Table 2: Test specification T 3.1: Temperature-controlled locations - mechanical tests


Environmental test specification T 3.1: In-use,Temperature-controlled locations

Type Parameter Detailparameter

Characteristicseverity


Vibration sinusoidal displacement (mm)acceleration (m/s2)frequency range (Hz)axes of vibration

0,31,0

2-99-200none

15

Shocks shocks shock spectrumduration (ms)acceleration (m/s2)number of shocksdirection of shocks

Type L2240

half sine1130

63 in each direction

IEC60068-2-27

Ea: Shock 18

NOTE 1: none = verification is required only in special casesNOTE 2: n = number of note, see clause 5.

Specification T 3.1 E: Temperature-controlled locations - exceptional operating conditions.

This specification applies to permanently temperature-controlled locations where humidity is usually not controlled. The reference class is the same as for T 3.1, but the testspecification relates to reduced performance requirements. See table 3.

ETSI

Draft EN 300 019-2-3 V2.1.1 (1999-04)10

Table 3: Test specification T 3.1 E : Temperature-controlled locations, exceptional operating conditions - climatic tests

Environmental parameter EnvironmentalClass 3.1E

Environmental test specification T3.1E: In-use,Temperature-controlled locations - Exceptional.



low (°C) -5 -5 16 h IEC 60068-2-1 Ab/Ad: Cold 1; 21

Airtemperature

high (°C) +45 +45 or +55 16 h IEC 60068-2-2 Bb/Bd: Dry heat 2; 21


+25/+450,5

half cyclet1 = 3 h


3; 21

low(%) 5 none 4, 21relative high (%)

(°C)90 93

+304 d IEC 60068-2-56 Cb: Damp heat

steady state5; 21

Humidity condensation noabsolute low(g/m3) 1 none 4, 21

high (g/m3) 25 7, 21Radiation solar (W/m2) 700 10

heat (W/m2) 600 11NOTE 1: no = this condition does not occur in this class.NOTE 2: none = verification is required only in special cases.NOTE 3: n = number of note, see clause 5.

ETSI

Draft EN 300 019-2-3 V2.1.1 (1999-04)11

3.2 Specification T 3.2: Partly temperature-controlled locationsThis specification applies to enclosed locations having neither temperature nor humidity control, but where heating may be used to avoid low temperatures. The buildingconstruction avoids extremely high temperatures. See tables 4 and 5.

Table 4: Test specification T 3.2: Partly temperature-controlled locations - climatic tests


Environmental test specification T3.2: In-use,Partly temperature-controlled locations



low (°C) -5 -5 16 h IEC 60068-2-1 Ab/Ad: Cold 1, 22Air high (°C) +45 +45 or +55 16 h IEC 60068-2-2 Bb/Bd: Dry heat 2, 22temperature change temp range (°C)

rate (°C/min) 0,5

+25/+55 or+25/+450,5

half cyclet1 = 3 h


3, 22

low(%) 5 none 4, 22

relativehigh (%)

(°C)95 93

+304 dsteady state

IEC 60068-2-56 Cb: Damp heat 5, 22

Humidity condensation(°C)(%)

yes+30°90-100

1 cycleIEC 60068-2-30 Db: Damp heat

cyclicVariant 1

6, 22

absolute low(g/m3) 1 none 4, 22high (g/m3) 29 7, 22

pressure low(kPa) 70 none 8Air high (kPa) 106 none 8

speed (m/s) 5,0 none 4rain intensity no

Water low temperature noother sources noicing & frosting yes 4

Radiation solar (W/m2) 700 10heat (W/m2) 600 11

ETSI

Draft EN 300 019-2-3 V2.1.1 (1999-04)12


Environmental test specification T3.2: In-use,Partly temperature-controlled locations




Chemically chlorine Cl2 (mg/m3) 0,1/0,3 none 12active HCl (mg/m3) 0,1/0,5 none 12substances nitrogen NOx (mg/m3) 0,5/5,0 none 12


(mg/m3) 0,01/0,03 none 12


(mg/(m2h))15 13

active suspension (mg/m3) 0,4 13substances sand (mg/m3) 300 13Flora and micro organisms mould, fungus, etc. none 14fauna rodents, insects rodents, etc. none 14NOTE 1: no = this condition does not occur in this class.NOTE 2: none = verification is required only in special cases.NOTE 3: n = number of note, see clause 5.

ETSI

Draft EN 300 019-2-3 V2.1.1 (1999-04)13

Table 5: Test specification T 3.2: Partly temperature-controlled locations - mechanical tests


Environmental test specification T 3.2: In-use,Partly temperature-controlled locations



Vibration sinusoidal velocity (mm/s)displacement (mm)acceleration (m/s2)frequency range (Hz)axes of vibration

1,55

2-99-200

5

25-62 62-200 3

3 x 5 sweepcycles

IEC 60068-2-6 Fc: Vibration(sinusoidal)

16

randomASD (m2/s3)

(dB/oct)frequency range (Hz)axes of vibration

0,02+12 -125-10 10-50 50-100 3

3 x 30 minutesIEC 60068-2-64 Fh: Vibration,

broad-band random(digital control)

17

Shocks shocks shock spectrumduration (ms)acceleration (m/s2)number of shocksdirections of shocks

Type L2240

half sine1130

63 in eachdirection

IEC 60068-2-27 Ea: Shock 18

NOTE: n = number of note, see clause 5.

ETSI

Draft EN 300 019-2-3 V2.1.1 (1999-04)14

3.3 Specification T 3.3: Not temperature-controlled locationsThis specification applies to weatherprotected or partially weatherprotected locations having neither temperature nor humidity control. See tables 6 and 7.

Table 6: Test specification T 3.3: Not temperature-controlled locations - climatic tests


Environmental test specification T3.3: In-use,Not temperature-controlled locations



low (°C) -25 -25 16 h IEC 60068-2-1 Ab/Ad: Cold 1, 23Air high (°C) +55 +55 or +70 16 h IEC 60068-2-2 Bb/Bd: Dry heat 2, 23temperature change (°C)

(°C/min) 0,5-5/+450,5

1 cyclet1 = 3 h

IEC60068-2-14

Nb: Change oftemperature

3, 23

low(%) 10 none 4, 23

relativehigh (%)

(°C)100 93

+304 d IEC

60068-2-56Cb: Damp heatsteady state

5, 23

Humiditycondensation

(%)(°C)

yes90-100+30

2 cyclesIEC60068-2-30

Db: Damp heatcyclic Variant 1

6, 23

absolute low(g/m3) 0,5 none 4, 23high (g/m3) 29 7, 23


speed (m/s) 5,0 none 4rain intensity wind driven 9

Water low temperature noother sources dripping water 4icing & frosting yes 4

Radiation solar (W/m2) 1 200 10heat (W/m2) 600 11

ETSI

Draft EN 300 019-2-3 V2.1.1 (1999-04)15


Environmental test specification T3.3: In-use,Not temperature-controlled locations






(mg/m3) 0,01/0,03 none 12


(mg/(m2h))15 13


ETSI

Draft EN 300 019-2-3 V2.1.1 (1999-04)16

Table 7: Test specification T 3.3: Not temperature-controlled locations - mechanical tests


Environmental test specification T 3.3: In-use,Not temperature-controlled locations




Vibration

sinusoidal

velocity (mm/s)displacement (mm)acceleration (m/s2)frequency range (Hz)axes of vibration

1,55

2-99-200

5

25-62 62-200 3

3 x 5 sweepcycles


16

random

ASD (m2/s3)(dB/oct)

frequency range (Hz)axes of vibration

0,02+12 -125-10 10-50 50-100 3

3 x 30 minutesIEC 60068-2-64 Fh: Vibration,

broad-band random(digital control)

17

Shocks shocks

shock spectrumduration (ms)acceleration (m/s2)number of shocksdirections of shocks

Type L2240

half sine1130


IEC 60068-2-27 Ea: Shock 18


ETSI

Draft EN 300 019-2-3 V2.1.1 (1999-04)17

3.4 Specification T 3.4: Sites with heat-trapThis specification applies to weatherprotected or partially weatherprotected locations having neither temperature nor humidity control. Solar radiation and heat-trap conditionsmay cause high temperatures. See tables 8 and 9.

Table 8: Test specification T 3.4: Sites with heat-trap - climatic tests


Environmental test specification T3.4: In-use,Sites with heat trap



low (°C) -40 -40 16 h IEC 60068-2-1 Ab/Ad: Cold 1, 24Airtemperature

high (°C) +70 +70 or +85 16 h IEC 60068-2-2 Bb/Bd: Dry heat 2, 24


-5/+450,5

2 cyclest1 = 3 h


3, 24

low(%) 10 none 4, 24

relativehigh (%)

(°C)100 93


steady state5, 24

Humidity condensation(%)(°C)

yes90-100+30

2 cycles IEC 60068-2-30 Db: Damp heat cyclicVariant 1

6, 24



speed (m/s) 5,0 none 4Water rain intensity wind driven 9

low temperature noother sources dripping and spraying

water4

icing & frosting yes 4Radiation solar (W/m2) 1 200 10

heat (W/m2) 600 11

ETSI

Draft EN 300 019-2-3 V2.1.1 (1999-04)18


Environmental test specification T3.4: In-use,Sites with heat trap






(mg/m3) 0,01/0,03 none 12

ozone O3 (mg/m3) 0,05/0,1 none 12Chemically dust sedimentation

(mg/(m2h))15 13


ETSI

Draft EN 300 019-2-3 V2.1.1 (1999-04)19

Table 9: Test specification T 3.4: Sites with heat-trap - mechanical tests


Environmental test specification T 3.4: Stationary use,Sites with heat-trap



Vibration

sinusoidaldisplacement (mm)acceleration (m/s2)frequency range (Hz)axes of vibration

3,010

2-99-200

1,24

5-99-200 3

3 x 5 sweep cycles


16, 19

IEC 60721-3-3Class 3M5 random

ASD (m2/s3)(dB/oct)


0,04+12 -125-10 10-50 50-100 3

3 x 30 minutesIEC60068-2-64

Fh: Vibration,broad-band random(digital control)

17, 19

ShocksIEC 60721-3-3Class 3M5

shocks

shock spectrumduration (ms)acceleration (m/s2)number of bumpsdirections of bumps

Type II6250

half sine1150


IEC60068-2-29

Eb: Bump 18, 19

Vibration

sinusoidal

velocity (mm/s)displacement (mm)acceleration (m/s2)frequency range (Hz)axes of vibration

1,55

2-99-200

5

25-62 62-200 3

3 x 5 sweep cycles


16, 19


ASD (m2/s3)(dB/oct)


0,02+12 -125-10 10-50 50-100 3


Fh: Vibration,broad-band random(digital control)

17, 19


shocks


Type L2270

half sine1130


IEC60068-2-27

Ea: Shock 18, 19


ETSI

Draft EN 300 019-2-3 V2.1.1 (1999-04)20

3.5 Specification T 3.5: Sheltered locationsThis specification applies to sheltered locations where direct solar radiation and heat-trap conditions do not exist. See tables 10 and 11.

Table 10: Test specification T 3.5: Sheltered locations - climatic tests


Environmental test specification T3.5: In-use,Sheltered locations



low (°C) -40 -40 16 h IEC 60068-2-1 Ab/Ad: Cold 1, 25Air high (°C) +40 +40 16 h IEC 60068-2-2 Bb/Bd: Dry heat 2, 25temperature change (°C)

(°C/min) 1,0-40/+401,0

2 cyclest1 = 3 h


3, 25

low(%) 10 none 4, 25

relativehigh (%)

(°C)100 93


steady state5, 25

Humidity condensation(%)(°C)

yes90-100+35

2 cyclesIEC 60068-2-30 Db: Damp heat cyclic

Variant 16, 25



speed (m/s) 30 none 4rain intensity wind driven 9

low temperature noWater other sources dripping and spraying

water9

icing & frosting yes 4Radiation solar (W/m2) no

heat (W/m2) 600 none

ETSI

Draft EN 300 019-2-3 V2.1.1 (1999-04)21


Environmental test specification T3.5: In-use,Sheltered locations






(mg/m3) 0,01/0,03 none 12

ozone O3 (mg/m3) 0,05/0,1 none 12Mechanical dust sedimentation

(mg/(m2h))15 13


ETSI

Draft EN 300 019-2-3 V2.1.1 (1999-04)22

Table 11: Test specification T 3.5: Sheltered locations - mechanical tests


Environmental test specification T 3.5: In-use,Sheltered locations



Vibration

sinusoidaldisplacement (mm)acceleration (m/s2)frequency range (Hz)axes of vibration

3,010

2-99-200

1,24

5-99-200 3

3 x 5 sweep cycles


16, 19


ASD (m2/s3)(dB/oct)


0,04+12 -125-10 10-50 50-100 3


Fh: Vibration,broad-bandrandom(digital control)

17, 19


shocks

shock spectrumduration (ms)acceleration (m/s2)number of bumpsdirections of bumps

Type II6250

half sine1150

6100 in eachdirection

IEC60068-2-29

Eb: Bump 18, 19

Vibration

sinusoidalvelocity (mm/s)displacement (mm)acceleration (m/s2)frequency range (Hz)axes of vibration

1,55

2-99-200

5

25-62 62-200 3

3 x 5 sweep cycles


16, 19


ASD (m2/s3)(dB/oct)


0,02+12 -125-10 10-50 50-100 3


Fh: Vibration,broad-bandrandom(digital control)

17, 19


shocks


Type L2270

half sine1130


IEC60068-2-27

Ea: Shock 18, 19


ETSI

Draft EN 300 019-2-3 V2.1.1 (1999-04)23

4 Earthquake test specificationIf earthquake conditions are specified by the customer, the earthquake test requirements stated below shall be applied.

The test specification is applicable to classes 3.1 to 3.5.

4.1 Vibration response investigationA preliminary vibration response investigation shall be carried out to determine the lowest resonant frequency of the mountedtest specimen.

The vibration response investigation can be carried out by means of sine sweep testing or random testing.

When using the sine sweep testing, the vibration response investigation shall be carried out as specified in IEC 60068-2-6 [2](test Fc), with the following parameter severities:

Frequency range: 1 Hz to 35 HzVibration amplitude: 2 m/s2

Sweep rate: ≤ 1 octave/min

NOTE: The vibration amplitude may be reduced to 1 m/s2 or less in case of sharp resonances.

If a random test is used this shall be performed in accordance with the requirements of IEC 60068-2-64 [2], using the followingseverities:

Frequency range: 1 Hz to 20 Hz 20 Hz to 35 HzASD: 0,5 m2/s3 -3 dB/octave

Duration: 3 minutes

NOTE: The Acceleration Spectral Density (ASD) value may be reduced to 0,3 m2/s3 or less in case of sharp resonances.

The time-history stated in table 12 can be omitted if, after the vibration response investigation, the equipment does not exhibitany resonance below 5 Hz and has passed the sinusoidal vibration test reported in table 9 (class 3.4) or in table 11 (class 3.5)for class 3M5. This test is sufficient to prove compliance with earthquake conditions given in ETS 300 019-1-3 [1].

ETSI

Draft EN 300 019-2-3 V2.1.1 (1999-04)24

4.2 Test conditioningSee table 12.

The extent to which the equipment under test has to function during tests or merely to survive conditions of test shall be stated in the product specification.

Table 12: Test specification T 3.1 to T 3.5: Earthquake test

Environmental parameter Environmentalclass 3.x

Environmental test specification T3.x:Earthquake test




Earthquake time-history RRS

frequency range(Hz)

ZPA (m/s2)

axes

damping ratio (%)

see part 1-3

0,3 - 50

15

fig.1, tab.13

1-35

15

3

2

30 s

IEC 60068-2-57 Ff: time-historymethod

20

NOTE: n= number of note, see clause 5.

ETSI

Draft EN 300 019-2-3 V2.1.1 (1999-04)25

1

10

100

0,1 1 10 100

frequency [Hz]

acce

lera

tion

[m/s

2 ]2

1

3

54

2 % damping

Figure 1: Earthquake Required Response Spectrum

Table 13: Acceleration co-ordinates for the Required Response Spectrum in Figure 1

Co-ordinatepoint

Frequency[Hz]

Values for upper flooracceleration [m/s 2]

1 1 302 2 503 5 504 15 155 35 15

5 Notes to tables

5.1 General noteThe present document applies to the use of stationary equipment at weather protected locations covered by the environmentalconditions stated in ETS 300 019-1-3 [1].

The relevant test specification should specify when, during the environmental test programme, the equipment is in it’soperational state, and which performance requirements should be measured before, during and after the test, together with theappropriate pass/fail criteria.

5.2 Notes to Tables 1 to 12NOTE 1: (Air temperature, low)

The characteristic severity can be used as a cold start up temperature, but it may be modified by the product specification. Theequipment under test shall remain operational throughout this test, except for the cold start up test which shall commence oncelow temperature stability is achieved.

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Draft EN 300 019-2-3 V2.1.1 (1999-04)26

NOTE 2: (Air temperature, high)

If two test temperatures are given, the lower test temperature applies if the equipment is protected against solar and heatradiation or the equipment is ventilated (natural or forced). The higher test temperature includes the heating effects of solarand/or heat radiation. The characteristic severity can be used as a high start up temperature, but it may be modified by theproduct specification. The equipment under test shall remain operational throughout this test, except for the high temperaturestart up test which shall commence once high temperature stability is achieved.

NOTE 3: (Air temperature, change)

The change of temperature test is normally used to check design tolerancing. IEC 60068-2-14 [2] Test Nb is recommended. Forchange of temperature of 0,5 °C /min, the cooling gradient may be reduced to 0,2 °C /min where test chamber restrictionspreclude a gradient of 0,5 °C /min.

NOTE 4:

There is no IEC 60068-2 [2] test method for this parameter.

NOTE 5: (Humidity, relative, high)

IEC 60068-2-56 [2] Test Cb is recommended with test values not higher than climatogram limits for this class.

NOTE 6: (Condensation)

IEC 60068-2-30 [2] Test Db is recommended with test values not higher than climatogram limits for this class.

NOTE 7: (Humidity, absolute, high)

This effect is considered to be partly included in the damp heat test IEC 60068-2-56 [2] Test Cb.

NOTE 8: (Air pressure, low and high)

No test is recommended for normal applications, because the effect of air pressure is evaluated at the component level.

NOTE 9: (Water, rain,)

The effect of wind driven rain outside to the equipment in the weatherprotected or partly weatherprotected locations is includedin IEC 60068-2-30 [2] Test Db. No test is recommended.

NOTE 10: (Radiation, solar)

The higher test temperature as described in Note 2. includes the heating effect of solar radiation. Photochemical tests can bemade separately for components and materials.

NOTE 11: (Radiation, heat)

The higher test temperature as described in Note 2. includes the heating effect.

NOTE 12: (Chemically active substances)

The characteristic severities are given as mean/maximum values. These severities should be considered when designing theequipment and when choosing components and materials. No test is recommended in this standard.

NOTE 13: (Mechanically active substances)

The characteristic severities are much lower than lowest test severity in IEC 60068-2-68 [2] Test L and therefore no test isrecommended. This condition should be considered when designing the equipment and when choosing components andmaterials.

NOTE 14: (Flora, fauna)

The characteristic severity should be considered when choosing components and materials.

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Draft EN 300 019-2-3 V2.1.1 (1999-04)27

NOTE 15: (Vibration, sinusoidal)

No test is recommended as the characteristic severities represent insignificant levels of vibration. The severities are given aspeak values.

NOTE 16: (Vibration, sinusoidal)

The severities are given as peak values. The characteristic severity given is considered to be too severe for this class. Testseverity values not specified in IEC 60068-2 [2]. Equipment under test shall be mounted in the "in-use" position. Theequipment function shall be monitored throughout the test.

NOTE 17: (Vibration, random)

ASD (Acceleration Spectral Density) random vibration testing method may be used instead of the sinusoidal vibration test. Thetest severity values are not specified in IEC 60068-2 [2]. The maximum test frequency has been reduced because between 100Hz and 200 Hz the contribution is insignificant.

classes: 3.2 / 3.3 / 3.4 (3M3) / 3.5 (3M3) classes: 3.4 (3M5) /3.5 (3M5)Acceleration RMS(for information only)

1,06 m/s2 1,5 m/s2

Equipment under test shall be mounted in the "in-use" position. The equipment function shall be monitored throughout the test.

NOTE 18: (Shocks)

The values for test severity are not specified in IEC 60068-2 [2]. The severities are given as peak values. The energy contentand the SRS of the shock given as test severity have been considered more appropriate than that given by the characteristicseverity.

Equipment under test shall be mounted in the "in-use" position. The equipment function shall be monitored throughout the test.

NOTE 19: (Environmental parameter)

In this table two IEC 60721-3-3 [4] classes are given, Class 3M3 may be chosen for equipment to be installed in locationswhere the mechanical conditions are equivalent to those given for partly- and not-temperature controlled locations or where theprobability of high mechanical stresses are rare. In all other cases IEC 60721-3-3 [4] class 3M5 should be used.

NOTE 20: (Earthquake)

RRS (Required Response Spectrum). ZPA (Zero Period Acceleration).

Equipment under test shall be mounted in the "in use" position. The testing configuration shall be worst case in terms of weightand stiffness. The influence of connections, piping, cables, etc. shall be taken into account when mounting the specimen. Thenormal "in service" mounting structure of the specimen should be included in the test.

Single-axis excitation is recommended; simultaneous multi-axis excitation is also acceptable, but it is not recommended since,in general, multi-axis testing gives less reproducible test results.

The three testing axes can be reduced to two horizontal axes if the equipment, after the vibration response investigation in thevertical axis, does not exhibit any resonance below 20 Hz.

The strong part of the time-history should be at least 15 s. The duration of each time-history signal shall be 30 s. Onetime-history shall be applied along each axis.

NOTE 21: (Alternative climatic tests)

The alternative test method given in annex A may be used.


The alternative test method given in annex B may be used.


The alternative test method given in annex C may be used.

ETSI

Draft EN 300 019-2-3 V2.1.1 (1999-04)28


The alternative test method given in annex D may be used.


The alternative test method given in annex E may be used.

ETSI

Draft EN 300 019-2-3 V2.1.1 (1999-04)29

Annex A (normative):Alternative climatic test method for class 3.1

A.1 DescriptionThis test method is an alternative to IEC 60068-2 [2] temperature and most humidity tests. It can also contain the cold start testgiven in the present document. The test uses a sequence which scans the characteristic conditions of the climatogram which isconstructed from test severities specified in the present document. It may be applied to all equipment being tested for climaticconformance with class 3.1 in ETS 300 019-1-3 [1].

A.2 ObjectivesTo provide a standard test method for determining the functionality of an equipment when it is tested in a variable climaticenvironment consisting of a simultaneous change in combined values of temperature and humidity.

The climatogram test takes into account the boundary climatic conditions which can affect equipment throughout Europe up toan altitude of 3 000 metres. The objective of the test is the evaluation of equipment resistibility performance and no attempt ismade to assess its reliability. This is why repairs are authorized during tests, provided that failures observed do notsystematically recur in the same climatic conditions.

A.3 Test apparatusThe test apparatus shall consist of a single test chamber that is able to reproduce the conditions described in this annex.

The dimensions of the chamber shall be in accordance with the criteria described in IEC 60068-2-56 [2].

NOTE: When climatic stabilization is specified, the time required will vary depending on the thermal mass of theequipment under test, its heat dissipation and the relative size of the test chamber.

For naturally ventilated equipment it is important that the air flow in the test chamber is controlled (less than 1 m/s) near theequipment under test in order to prevent undue influence on its ventilation system. This will allow components inside theequipment to reach their working temperature in relation to the ambient conditions of the chamber.

The test chamber is required to control the rate of change of temperature to a maximum of 0,5°C per minute and the rate ofchange of relative humidity to a maximum of 10 % per hour with the equipment in its operational state.

A.4 MethodologyThe traditional method used for climatic testing of equipment in order to demonstrate its resistibility is to use theIEC 60068-2 [2] tests (i.e. cold, dry heat, change of temperature and steady state damp heat). The severities of the tests arechosen to simulate the effects of the extreme climatic conditions of the class.

This annex describes an alternative test method which uses a sequence test following the characteristic conditions of theclimatogram figure A.1.

A.5 Pre-conditioningPre-conditioning is required for a minimum period of one hour after temperature stabilization within the equipment under theinitial condition 23°C / 50 % R.H. (i.e. point S on the climatogram of figure A.1).

ETSI

Draft EN 300 019-2-3 V2.1.1 (1999-04)30

A.6 Testing

A.6.1 Equipment operationThe equipment under test shall be in its operational state throughout the tests. Input and load conditions of the equipment shallbe chosen to obtain full utilization of the equipment under test. The dissipation shall be maximized, except for the lowtemperature test, where it shall be minimized.

A.6.2 Equipment failuresIf a failure occurs, the whole test cycle shall be started again, after the failure has been recorded and rectified.

A.6.3 Test severities

Table A.1: Test severities for class 3.1

Protected from solar and heat radiationor equipment is ventilated

Exposed to solar and heat radiation andequipment is not ventilated

Exceptional operatingconditions (8)

Normal operating conditions Exceptional operatingconditions (8)

Normal operatingconditions

Point Temp(°C)

RH(%)

Point Temp(°C)

RH(%)

Point Temp(°C)

RH(%)

Point Temp(°C)

RH(%)

S +23 (3) 50 (6) S +23 (3) 50 (6) S +23 (3) 50 (6) S +23 (3) 50 (6)Ae +45 (3) 37 (6) A

via S+40 (3) 47 (6) Ae +55 (3) 23 (6) A

via S+50 (3) 30 (6)

Be +45 (3) 5 (5) B +40 (3) 5 (5) Be +55 (3) 5 (5) B +50 (3) 5 (5)C +23 (3) 5 (5) C +23 (3) 5 (5) C +23 (3) 5 (5) C +23 (3) 5 (5)-D +5 (2) 15 (5) D +5 (2) 15 (5) D +5 (2) 15 (5) D +5 (2) 15 (5)Ee -5 (2),

(7)Any (1) E +5 (2),

(7)Any (1) Ee -5 (2),

(7)Any (1) E +5 (2),

(7)Any (1)

Fe +5 (2) 90 (6) F +5 (2) 85 (6) Fe +5 (2) 90 (6) F +5 (2) 85 (6)Ge +28 (3) 90 (4) G +29 (3) 85 (4) Ge +28 (3) 90 (4) G +29 (3) 85 (4)A +40 (3) 47 (6) A +40 (3) 47 (6) A +50 (3) 30 (6) A +50 (3) 30 (6)S +23 (3) 50 (6) S +23 (3) 50 (6) S +23 (3) 50 (6) S +23 (3) 50 (6)

NOTE 1: It is acceptable to perform tests without controlling the humidity when testing below 5°C (as detailed inIEC 60068-2-1 Test Ad).

NOTE 2: ±3°C according to IEC 60068-2-1.NOTE 3: ±2°C according to IEC 60068-2-2 and IEC 60068-2-56.

±3°C is acceptable for certain chamber sizes, as indicated in IEC 60068-2-2.NOTE 4: ±3 % RH according to IEC 60068-2-56.NOTE 5: Low relative humidity to be ±5 %.NOTE 6: ±3 % RH.NOTE 7: If the cold start test is required in the product specification, when arriving at the point E the equipment shall

be switched off; after temperature stabilization is reached within the equipment, it shall be switched on andthe test continued.

NOTE 8: Exceptional operating conditions relate to reduced performance requirements.

ETSI

Draft EN 300 019-2-3 V2.1.1 (1999-04)31

A.6.4 Scanning the climatogramThe sequence of scanning the climatogram is shown in figure A.1. Scanning begins at point S and ends at point S.

The various points of the climatogram correspond with test severities specified in table A.1.

D

C S

0 100

Be Ae S ÎÎA(e) : 0,5 ºC/min

Fe

Ge

Ee

E

G

F

AB

Air

Tem

pera

ture

(

ºC

)

Relative Humidity (%)

Abs

olut

e H

umid

ity (

g/m

³)

Figure A.1: Climatogram showing scanning sequence

A.6.5 Rates of changeThe rates of change for temperature and humidity are:

a) 5°C/h during constant relative or absolute humidity;

b) 10 % RH/h during constant temperature;

c) 0,5°C/min between point S to point A and Ae This step is used to verify the performance of the equipment undermaximum rate of change of temperature.

NOTE: The cooling gradient may be reduced to 0,2°C/min where test chamber restrictions preclude a gradient of0,5°C/min.

A.6.6 Functional requirements and verificationWhere practicable, the performance of the equipment should be monitored throughout the test. The parameters shall be fullydescribed in the relevant test specification.

At the beginning and the end of scanning (Point "S" on the test climatogram, figure A.1) the equipment shall be visuallyexamined and functional checks shall be made as prescribed by the test specification.

Functional checks shall also be performed at relevant points on figure A.1 as described in subclauses A.6.3 and A.6.4, after aminimum period of one hour has elapsed since temperature stabilization within the equipment. The test specification shall detailwhich functions are to be checked at each point on the test climatogram.

ETSI

Draft EN 300 019-2-3 V2.1.1 (1999-04)32

Annex B (normative):Alternative climatic test method for class 3.2

B.1 DescriptionThis test method is an alternative to IEC 60068-2 [2] temperature and most humidity tests. It can also contain the cold start testgiven in the present document. The test uses a sequence which scans the characteristic conditions of the climatogram which isconstructed from test severities specified in the present document. It may be applied to all equipment being tested for climaticconformance with class 3.2 in ETS 300 019-1-3 [1].

NOTE: This test method is made complete with the condensation test (see table 4: Test specification T 3.2 - Test Db) andshould be carried out on the same test specimen.

B.2 ObjectivesTo provide a standard test method for determining the functionality of an equipment when it is tested in a variable climaticenvironment consisting of a simultaneous change in combined values of temperature and humidity.


B.3 Test apparatusThe test apparatus shall consist of a single test chamber that is able to reproduce the conditions described in this annex.





B.4 MethodologyThe traditional method used for climatic testing of equipment in order to demonstrate its resistibility is to use theIEC 60068-2 [2] tests (i.e. cold, dry heat, change of temperature and steady state damp heat). The severities of the tests arechosen to simulate the effects of the extreme climatic conditions of the class.

This annex describes an alternative test method which uses a sequence test following the characteristic conditions of theclimatogram figure B.1.

ETSI

Draft EN 300 019-2-3 V2.1.1 (1999-04)33

B.5 Pre-conditioningPre-conditioning is required for a minimum period of one hour after temperature stabilization within the equipment under theinitial condition 23°C / 50 % R.H. (i.e. point S on the climatogram of figure B.1).

B.6 Testing

B.6.1 Equipment operationThe equipment under test shall be in its operational state throughout the tests.

Input and load conditions of the equipment shall be chosen to obtain full utilization of the equipment under test. The dissipationshall be maximized, except for the low temperature test, where it shall be minimized.

B.6.2 Equipment failuresIf a failure occurs, the whole test cycle shall be started again, after the failure has been recorded and rectified.

B.6.3 Test severities

Table B.1: Test severities for class 3.2



Climatic limits Climatic limits

Point Temp(°C)

RH(%)

Point Temp(°C)

RH(%)

S +23 (3) 50 (6) S +23 (3) 50 (6)A +45 (3) 45 (6) A +55 (3) 28 (6)B +45 (3) 5 (5) B +55 (3) 5 (5)C +23 (3) 5 (5) C +23 (3) 5 (5)D +5 (2) 15 (5) D +5 (2) 15 (5)E -5 (2), (7) Any (1) E -5 (2), (7) Any (1)F +5 (2) 95 (6) F +5 (2) 95 (6)G +30 (3) 95 (4) G +30 (3) 95 (4)A +45 (3) 45 (6) A +55 (3) 45 (6)S +23 (3) 50 (6) S +23 (3) 50 (6)NOTE 1: It is acceptable to perform tests without controlling the humidity when testing below

5°C (as detailed in IEC 60068-2-1 Test Ad).NOTE 2: ±3°C according to IEC 60068-2-1.NOTE 3: ±2°C according to IEC 60068-2-2 and IEC 60068-2-56.

±3°C is acceptable for certain chamber sizes, as indicated in IEC 60068-2-2.NOTE 4: ±3 % RH according to IEC 60068-2-56.NOTE 5: Low relative humidity to be ±5 %.NOTE 6: ±3 % RH.NOTE 7: If the cold start test is required in the product specification, when arriving at the

point E the equipment shall be switched off; after temperature stabilization isreached within the equipment, it shall be switched on and the test continued.

B.6.4 Scanning the climatogramThe sequence of scanning the climatogram is shown in figure B.1. Scanning begins at point S and ends at point S.

The various points of the climatogram correspond with test severities specified in table B.1.

ETSI

Draft EN 300 019-2-3 V2.1.1 (1999-04)34

S ÎÎA : 0,5 oC/minA

ir te

mpe

ratu

re (

o C)

Abs

olut

e H

umid

ity (

g/ m

3 )

D

C

BA

F

G

0 100

E


S

Figure B.1: Climatogram showing scanning sequence

B.6.5 Rates of changeThe rates of change for temperature and humidity are:



c) 0,5°C/min between point S to point A. This step is used to verify the performance of the equipment under maximum rateof change of temperature.


B.6.6 Functional requirements and verificationWhere practicable, the equipment's performance should be monitored throughout the test. The parameters shall be fullydescribed in the relevant test specification.

At the beginning and the end of scanning (Point S on the test climatogram, figure B.1), the equipment shall be visuallyexamined, and functional checks shall be made as prescribed by the test specification.

Functional checks shall also be performed at relevant points on figure B.1, as described in subclause B.6.4, after a minimumperiod of one hour has elapsed since temperature stabilization within the equipment. The test specification shall detail whichfunctions are to be checked at each point on the test climatogram.

ETSI

Draft EN 300 019-2-3 V2.1.1 (1999-04)35

Annex C (normative):Alternative climatic test method for class 3.3

C.1 DescriptionThis test method is an alternative to IEC 60068-2 [2] temperature and most humidity tests. It can contain also the cold start testgiven in the present document. The test uses a sequence which scans the characteristic conditions of the climatogram which isconstructed from test severities specified in the present document. It may be applied to all equipment being tested for climaticconformance with class 3.3 in ETS 300 019-1-3 [1].

NOTE: This test method is made complete with the condensation test (see table 6: Test specification T 3.3 - Test Db) andshould be carried out on the same test specimen.

C.2 ObjectivesTo provide a standard test method for determining the functionality of an equipment when it is tested in a variable climaticenvironment consisting of a simultaneous change in combined values of temperature and humidity.


C.3 Test apparatusThe test apparatus shall consist of a single test chamber that is able to reproduce the conditions described in this annex.





C.4 MethodologyThe traditional method used for climatic testing of equipment in order to demonstrate its resistibility is to use theIEC 60068-2 [2] tests (i.e. cold, dry heat, change of temperature and steady state damp heat). The severities of the tests arechosen to simulate the effects of the extreme climatic conditions of the class.

This annex describes an alternative test method which uses a sequence test following the characteristic conditions of theclimatogram figure C.1.

ETSI

Draft EN 300 019-2-3 V2.1.1 (1999-04)36

C.5 Pre-conditioningPre-conditioning is required for a minimum period of one hour after temperature stabilization within the equipment under theinitial condition 23°C / 50 % R.H. (i.e. point S on the climatogram of figure C.1).

C.6 Testing

C.6.1 Equipment operationThe equipment under test shall be in its operational state throughout the tests.


C.6.2 Equipment failuresIf a failure occurs, the whole test cycle shall be started again, after the failure has been recorded and rectified.

C.6.3 Test severities

Table C.1: Test severities for class 3.3



Climatic limits Climatic limitsPoint Temp

(°C)RH(%)

Point Temp(°C)

RH(%)

S +23 (3) 50 (6) S +23 (3) 50 (6)A +55 (3) 28 (6) A +70 (3) 15 (6)B +55 (3) 10 (5) B +70 (3) 10 (5)C,D +5 (2) 10 (5) C,D +5 (2) 10 (5)E -25 (2), (7) Any (1) E -25 (2), (7) Any (1)F +5 (2) 100 (6) F +5 (2) 100 (6)G +29 (3) 100 (4) G +29 (3) 100 (4)A +55 (3) 28 (6) A +70 (3) 15 (6)S +23 (3) 50 (6) S +23 (3) 50 (6)NOTE 1: It is acceptable to perform tests without controlling the humidity when testing below

5°C (as detailed in IEC 60068-2-1 Test Ad).NOTE 2: ±3°C according to IEC 60068-2-1.NOTE 3: ±2°C according to IEC 60068-2-2 and IEC 60068-2-56.

±3°C is acceptable for certain chamber sizes, as indicated in IEC 60068-2-2.NOTE 4 : ±3 % RH according to IEC 60068-2-56.NOTE 5: Low relative humidity to be ±5 %.NOTE 6: ±3 % RH.NOTE 7: If the cold start test is required in the product specification, when arriving at the


C.6.4 Scanning the climatogramThe sequence of scanning the climatogram is shown in figure C.1. Scanning begins at point S and ends at point S.

The various points of the climatogram correspond with test severities specified in table C.1.

ETSI

Draft EN 300 019-2-3 V2.1.1 (1999-04)37

C, D

BA

S

F

G

0 100

E

S ÎÎA : 0,5 ºC/min

Air

Tem

pera

ture

(º C

)


Abs

olut

e H

umid

ity (g

/m3 )

Figure C.1: Climatogram showing scanning sequence

C.6.5 Rates of changeThe rates of change for temperature and humidity are:





C.6.6 Functional requirements and verificationWhere practicable, the performance of the equipment should be monitored throughout the test. The parameters shall be fullydescribed in the relevant test specification.

At the beginning and the end of scanning (Point S on the test climatogram, figure C.1), the equipment shall be visuallyexamined, and functional checks shall be made as prescribed by the test specification.

Functional checks shall also be performed at relevant points on figure C.1, as described in subclause C.6.4, after a minimumperiod of one hour has elapsed since temperature stabilization within the equipment. The test specification shall detail whichfunctions are to be checked at each point on the test climatogram.

ETSI

Draft EN 300 019-2-3 V2.1.1 (1999-04)38

Annex D (normative):Alternative climatic test method for class 3.4

D.1 DescriptionThis test method is an alternative to IEC 60068-2 [2] temperature and most humidity tests. It can also contain the cold start testgiven in the present document. The test uses a sequence which scans the characteristic conditions of the climatogram which isconstructed from test severities specified in the present document. It may be applied to all equipment being tested for climaticconformance with class 3.4 in ETS 300 019-1-3 [1].

NOTE: This test method is made complete with the condensation test (see table 8 Test specification T 3.4 - Test Db) andshould be carried out on the same test specimen.

D.2 ObjectivesTo provide a standard test method for determining the functionality of an equipment when it is tested in a variable climaticenvironment consisting of a simultaneous change in combined values of temperature and humidity.


D.3 Test apparatusThe test apparatus shall consist of a single test chamber that is able to reproduce the conditions described in this annex.



For naturally ventilated equipment it is important that the air flow in the test chamber is controlled (less than 1m/s) near theequipment under test in order to prevent undue influence on its ventilation system. This will allow components inside theequipment to reach their working temperature in relation to the ambient conditions of the chamber.


D.4 MethodologyThe traditional method used for climatic testing of equipment in order to demonstrate its resistibility is to use theIEC 60068-2 [2] tests (i.e. cold, dry heat, change of temperature and steady state damp heat). The severities of the tests arechosen to simulate the effects of the extreme climatic conditions of the class.

This annex describes an alternative test method which uses a sequence test following the characteristic conditions of theclimatogram figure D.1.

ETSI

Draft EN 300 019-2-3 V2.1.1 (1999-04)39

D.5 Pre-conditioningPre-conditioning is required for a minimum period of one hour after temperature stabilization within the equipment under theinitial condition 23°C / 50 % R.H. (i.e. point S on the climatogram of figure D.1).

D.6 Testing

D.6.1 Equipment operationThe equipment under test shall be in its operational state throughout the tests.


D.6.2 Equipment failuresIf a failure occurs, the whole test cycle shall be started again, after the failure has been recorded and rectified.

D.6.3 Test severities

Table D.1: Test severities for class 3.4


Climatic limitsPoint Temp

(°C)RH(%)

S +23 (3) 50 (6)A +70 (3) 18 (6)B +70 (3) 10 (5)

C,D +5 (2) 10 (5)E -40 (2), (7) Any (1)F +5 (2) 100 (6)G +33 (3) 100 (4)A +70 (3) 28 (6)S +23 (3) 50 (6)

NOTE 1: It is acceptable to perform tests without controlling the humidity when testingbelow 5°C (as detailed in IEC 60068-2-1 Test Ad).


±3°C is acceptable for certain chamber sizes, as indicated in IEC 60068-2-2.NOTE 4: ±3 % RH according to IEC 60068-2-56.NOTE 5: Low relative humidity to be ±5 %.NOTE 6: ±3 % RH.NOTE 7: If the cold start test is required in the product specification, when arriving at the


ETSI

Draft EN 300 019-2-3 V2.1.1 (1999-04)40

D.6.4 Scanning the climatogramThe sequence of scanning the climatogram is shown in figure D.1. Scanning begins at point S and ends at point S.

The various points of the climatogram correspond with test severities specified in table D.1.

S ÎÎ A : 0,5 ºC/min

Air

Tem

pera

ture

(ºC

)


BA

F

G

0 100

E

C, D

S

Abs

olut

e H

umid

ity (g

/m3 )

Figure D.1: Climatogram showing scanning sequence

D.6.5 Rates of changeThe rates of change for temperature and humidity are:





D.6.6 Functional requirements and verificationWhere practicable, the performance of the equipment should be monitored throughout the test. The parameters shall be fullydescribed in the relevant test specification.

At the beginning and the end of scanning (Point S on the test climatogram, figure D.1), the equipment shall be visuallyexamined, and functional checks shall be made as prescribed by the test program.

Functional checks shall also be performed at relevant points on figure D.1, as described in subclause D.6.4, after a minimumperiod of one hour has elapsed since temperature stabilization within the equipment. The test specification shall detail whichfunctions are to be checked at each point on the test climatogram.

ETSI

Draft EN 300 019-2-3 V2.1.1 (1999-04)41

Annex E (normative):Alternative climatic test method for class 3.5

E.1 DescriptionThis test method is an alternative to IEC 60068-2 [2] temperature and most humidity tests. It can also contain the cold start test,given in the present document. The test uses a sequence test which scans the characteristic conditions of the climatogram whichis constructed from test severities specified in the present document. It may be applied to all equipment being tested for climaticconformance with class 3.5 in ETS 300 019-1-3 [1].

NOTE: This test method is made complete with the condensation test (see table 10 Test specification T 3.5 - Test Db)and should be carried out on the same test specimen.

E.2 ObjectivesTo provide a standard test method for determining the functionality of an equipment when it is tested in a variable climaticenvironment consisting of a simultaneous change in combined values of temperature and humidity.


E.3 Test apparatusThe test apparatus shall consist of a single test chamber that is able to reproduce the conditions described in this annex.





E.4 MethodologyThe traditional method used for climatic testing of equipment in order to demonstrate its resistibility is to use theIEC 60068-2 [2] tests (i.e. cold, dry heat, change of temperature and steady state damp heat). The severities of the tests arechosen to simulate the effects of the extreme climatic conditions of the class.

This annex describes an alternative test method which uses a sequence test following the characteristic conditions of theclimatogram figure E.1.

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Draft EN 300 019-2-3 V2.1.1 (1999-04)42

E.5 Pre-conditioningPre-conditioning is required for a minimum period of one hour after temperature stabilization within the equipment under theinitial condition 23°C / 50 % R.H. (i.e. point S on the climatogram of figure E.1).

E.6 Testing

E.6.1 Equipment operationThe equipment under test shall be in its operational state throughout the tests.


E.6.2 Equipment failuresIf a failure occurs, the whole test cycle shall be started again, after the failure has been recorded and rectified.

E.6.3 Test severities

Table E.1: Test severities for class 3.5


Climatic limitsPoint Temp

(°C)RH(%)

S +23 (3) 50 (6)A +40 (3) 69 (6)B +40 (3) 10 (5)

C,D +5 (2) 10 (5)E -40 (2), (7) Any (1)F +5 (2) 100 (6)G +33 (3) 100 (4)A +40 (3) 69 (6)S +23 (3) 50 (6)

NOTE 1: It is acceptable to perform tests without controlling the humidity when testing below 5°C (asdetailed in IEC 60068-2-1 test Ad).


±3°C is acceptable for certain chamber sizes, as indicated in IEC 60068-2-2.NOTE 4: ±3 % RH according to IEC 60068-2-56.NOTE 5: Low relative humidity to be ±5 %.NOTE 6: ±3 % RH.NOTE 7: If the cold start test is required in the product specification, when arriving at the point E the

equipment shall be switched off; after temperature stabilization is reached within theequipment, it shall be switched on and the test continued.

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Draft EN 300 019-2-3 V2.1.1 (1999-04)43

E.6.4 Scanning the climatogramThe sequence of scanning the climatogram is shown in figure E.1. Scanning begins at point S and ends at point S.

The various points of the climatogram correspond with test severities specified in table E.1.

S ÎÎ A : 1,0

Air

Tem

pera

ture

(

ºC)


BA

F

G

0 100

E

C, D

S

Abs

olut

e H

umid

ity (

g/m

³)

Figure E.1: Climatogram showing scanning sequence

E.6.5 Rates of changeThe rates of change for temperature and humidity are:



c) 1°C/min between point S to point A. This step is used to verify the performance of the equipment performance undermaximum rate of change of temperature.

E.6.6 Functional requirements and verificationWhere practicable, the performance of the equipment should be monitored throughout the test. The parameters shall be fullydescribed in the relevant test specification.

At the beginning and the end of scanning (Point S on the test climatogram, figure E.1), the equipment shall be visuallyexamined and functional checks shall be made as prescribed by the test specification.

Functional checks shall also be performed at relevant points on figure E.1, as described in subclause E.6.4, after a minimumperiod of one hour has elapsed since temperature stabilization within the equipment. The test specification shall detail whichfunctions are to be checked at each point on the test climatogram.

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Draft EN 300 019-2-3 V2.1.1 (1999-04)44

BibliographyThe following material, though not specifically referenced in the body of the present document (or not publicly available), givessupporting information.

ETR 035: "Equipment Engineering (EE); Environmental engineering; Guidance and terminology".

IEC 60068-1: "Environmental testing Part 1: General and guidance".

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Draft EN 300 019-2-3 V2.1.1 (1999-04)45

HistoryDocument history

Edition 1 May 1994 Publication as ETS 300 019-2-3

V2.1.1 April 1999 One-step Approval Procedure OAP 9935: 1999-04-30 to 1999-08-27

Draft EN 300 019-2-3 V2.1 - etsi.org · 4.1 Vibration response investigation ... which is available...

Documents

Transcript of Draft EN 300 019-2-3 V2.1 - etsi.org · 4.1 Vibration response investigation ... which is available...